Self-threading shuttle for looms



(M o deL) J H. N ASON'. SELF THREADING SHUTTLE FOR LOOMS'.

No. 599,861. Patented Mar. 1, 1898.

, d. Keeper D being fixed in the shuttle in any UNITED STATES PATENT OEEicE.

JOSEPH HERBERT NASON, OF SOMERVILLE, MASSACHUSETTS, ASSIGNOR OF ONE-HALF TO HENRY M. HEWES, 0F BOSTON, MASSACHUSETTS.

SELF-THREADING SHUTTLE FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 599,861, dated March 1, 1898.

Application filed July 6,1896.

To all whom it may concern.

Be it known that I, J osEPH HERBERT NA- SON, a citizen of the United States of America, residing at Somerville, in the county of Middlesex and State of Massachusetts, have invented an Improvement in Self-Threading Shuttles for Looms, of which the followingis a specification.

Referring to'the accompanying drawings, Figure 1 is a top plan view, Fig. 2 a side view, and Fig. 3 a cross-sectional View on line 3 3 of Fig.1,of ashuttle embodying my invention. Figs. 4 and 5 show modifications. Figs. 6 and 7 are details of a form of feeding-pin.

The object of my invention is to produce a self-threading shuttle which is automatically threaded while the shuttle is in motion. 1 One feature of my invention is a threadkeeper, and in its preferred form consists of a block having a thread-passage, a downwardly-inclined finger crossing said space, and a guard for the free end of the finger.

In the drawings shuttle-body A is formed with a bobbin-space and a straight threadpassage or in frontof this space to, in this instance, an open lateral thread-passage a, which communicates with delivery-eye a The shuttle is provided with a feeding-pin B, which, both alone and in certain combinations forms the subject-matter of my application, Serial No. 598,166, of evendate, and in the present application this pin is shown as slan ting upwardly from the delivery-eye nearly across the straight thread-passage, a wall of which overhangs the free end of the guidingpin.

D is my new thread-keeper, and in the preferred embodiment of my invention is a block formed with a thread-passage d and a finger d, which extends downwardly across passage 61, into recess d on the opposite side of passage suitable manner-for example, by a cross-pin through the sides of the shuttle and the body of thread-keeper, with its thread-passage cl in line with thread-passage a-the thread from the bobbin or cop is passed downwardly on finger d, over the end of the finger, and into and across the thread-passage cl, whence it is carried to the delivery-eye. As the free end of the finger d is guarded by the recess Serial No. 598,167. (Model.)

(1 the thread cannot jump out'of the threadpassage d. It is preferable that the free end of the finger should actually project into the recess 01 but if the free end be in line with the wall 01 just below the recess the thread will not jump past the free end of the finger, but on moving upwardly will follow along the under side of the finger and be kept in the thread-passage. Preferablya threadbearing (:1 of hard metal is fixed on the side of the keeper just at the outer side of the thread-passage d, so that the thread to the delivery-eye will not wear the softer metal preferably used for making the body of the keeper.

The advantages of my keeper are simplicity,

cheapness, and lightness, as well as entire practicability. By its use an automatic selfthreading shuttle having a straight threadpassage between the bobbin-space and feed ing-pin may-be provided for use in the Northrop (see United States Letters Patent No. 454,810 to Northrop and No. 462,919 to Draper and Northrop) and similar looms by employment of the old lateral thread-passage into the delivery-eye. Such a lateral threadpassage into the delivery-eye is shown in Thompsons United States Letters Patent No. 319,866, of June 9, 1885, Nolans patent, No. 323,438, of August 4, 1885, and Goddus patent,No. 344,369,0f June 29,1886,these patents showing varying forms of such lateral slot intersecting the delivery-eye.

In Fig. 4, showing a modification, all the metal portion of the keeper excepting the finger and thread-bearing are dispensed with. Finger win this case is fixed at one side of the thread-passage x and extends downwardly across the thread-passage just into a recess 00 on the face of the opposite wall of the thread-passage 00'. A suitable thread-bearing m is formed between the fingers and delivery-eye by a pin fixed in the path of the thread. 7

What I claim is- The combination of a shuttle-body having a thread-passage located in front of its bobbinspace and whose walls are made integral with the shuttle-body itself, and provided with a delivery-eye and a lateral thread-passage connectin g said thread-passage with the deliveryeye; a feeding-pin slanting upwardly from the delivery-eye nearly across the threadname to this specification, in the presence of passage a wall of which overhangs the free two subscribing witnesses, on this 16th day of end of the guiding-pin, with a finger fixed at June, A. D. 1890.

one side of the said thread-passage and ex- JOSEPH HERBERT NASON. 5 tending downwardly across said thread-pas- \Vitnesses:

sage anda guard for the free end of the finger. EDWARD S. BEACH,

In testimony whereof I have signed my II. M. HEWEs. 

